Effect of nonthermality of electrons on the speed and shape of ion-acoustic solitary waves in a warm plasma

Journal Article · Sun Jul 15 00:00:00 EDT 2012 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.4731715· OSTI ID:22072544

Abdelwahed, H G ^[1]; El-Shewy, E K ^[2]

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1. Department of Physics, College of Sciences and Humanitarian Studies, Salman Bin Abdulaziz University, Al-Kharj (Saudi Arabia)
2. Theoretical Physics Group, Faculty of Science, Mansoura University, Mansoura (Egypt)

Nonlinear ion-acoustic solitary waves in a warm collisionless plasma with nonthermal electrons are investigated by a direct analysis of the field equations. The Sagdeev's potential is obtained in terms of ion acoustic speed by simply solving an algebraic equation. It is found that the amplitude and width of the ion-acoustic solitons as well as the parametric regime where the solitons can exist are sensitive to the population of energetic non-thermal electrons. The soliton and double layer solutions are obtained as a small amplitude approximation.

• OSTI ID: 22072544
• Journal Information: Physics of Plasmas, Vol. 19, Issue 7; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
AMPLITUDES
APPROXIMATIONS
COLLISIONLESS PLASMA
ELECTRONS
FIELD EQUATIONS
ION ACOUSTIC WAVES
MATHEMATICAL SOLUTIONS
NONLINEAR PROBLEMS
SOLITONS